From: sashiko-bot@kernel.org
To: "kai zhang" <zhangkai.cool@gmail.com>
Cc: linux-pci@vger.kernel.org
Subject: Re: [PATCH] PCI/P2PDMA: Add Intel 0x6f00 host bridge to the whitelist
Date: Wed, 07 Oct 2026 14:18:32 +0000 [thread overview]
Message-ID: <sashiko-outbox-163093@kernel.org> (raw)
In-Reply-To: <20261007141558.59852-1-zhangkai.cool@gmail.com>
> For P2P paths routed through a host bridge, the P2PDMA core consults a
> whitelist of known-good hardware. Add Intel 8086:6f00 with
> REQ_SAME_HOST_BRIDGE so the entry permits peers only below the same host
> bridge.
>
> The bridge was tested on a single-socket Intel Xeon E5-2697A v4 system
> with two PCIe GPUs below different Root Ports of the same host bridge.
> Without the whitelist entry, peer access was rejected before a transfer
> was issued. With the entry, 64 MiB peer transfers completed in both
> directions with data integrity verified while the IOMMU used translated
> mode.
>
> Assisted-by: LLM
> Signed-off-by: kai zhang <zhangkai.cool@gmail.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261007141558.59852-1-zhangkai.cool@gmail.com?part=1
next prev parent reply other threads:[~2026-10-07 14:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-07 14:15 [PATCH] PCI/P2PDMA: Add Intel 0x6f00 host bridge to the whitelist kai zhang
2026-10-07 14:18 ` sashiko-bot [this message]
2026-10-07 21:59 ` Bjorn Helgaas
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=sashiko-outbox-163093@kernel.org \
--to=sashiko-bot@kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=sashiko-reviews@lists.linux.dev \
--cc=zhangkai.cool@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.